- Look up
tautology in Wiktionary, the free dictionary.
Tautology may
refer to:
Tautology (language), a
redundant statement in
literature and
rhetoric Tautology...
- as symbolized, for instance, by "1".
Tautologies are a key
concept in
propositional logic,
where a
tautology is
defined as a
propositional formula that...
- point.
Sometimes logical tautologies like "Boys will be boys" are
conflated with
language tautologies, but a
language tautology is not
inherently true,...
- the term
tautology is also
commonly used to
refer to what
could more
specifically be
called truth-functional
tautologies.
Whereas a
tautology or logical...
- as
logical axioms at
least some
minimal set of
tautologies that is
sufficient for
proving all
tautologies in the language; in the case of
predicate logic...
- (that is, the last
formula in a
sequence of
formulas derived from the
tautologies)
could ultimately yield S itself. As an ****ignment to
variable S can...
-
everywhere is
considered a
tautology. For example, A → A and A ↔ A are
tautologies in Ł3 and also in
classical logic. Not all
tautologies of
classical logic lift...
-
algebra corresponds to the
tautologies (Φ ∨ ¬Ψ) ∧ (¬Φ ∨ Ψ) and (Φ ∧ Ψ) ∨ (¬Φ ∧ ¬Ψ). If → is in the language,
these last
tautologies can also be
written as...
-
Shermer addresses the
tautology problem in his 1997 book, Why
People Believe Weird Things, in
which he
points out that
although tautologies are
sometimes the...
- "the man he said," or "vibrating with motion." It is a
manifestation of
tautology by
traditional rhetorical criteria.
Pleonasm may also be used for emphasis...
